<!-- popup.html -->
<!DOCTYPE html>
<html>
<head>
  <style>
    body { 
      width: 180px;
      padding: 15px;
      font-family: Arial, sans-serif;
    }
    #toggle {
      width: 100%;
      padding: 8px;
      background: #4CAF50;
      color: white;
      border: none;
      border-radius: 4px;
      cursor: pointer;
    }
    #toggle.off { background: #f44336; }
    #status {
      margin-top: 10px;
      font-size: 12px;
      color: #666;
      word-break: break-word;
    }
  </style>
</head>
<body>
  <button id="toggle">初始化中...</button>
  <div id="status"></div>
  <script src="popup.js"></script>
</body>
</html>